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import dayjs from 'dayjs';
import utc from 'dayjs/plugin/utc.js';
import {getCurrentLocale} from '../utils.ts';
import type {ConfigType} from 'dayjs';
dayjs.extend(utc);
/**
* Returns an array of millisecond-timestamps of start-of-week days (Sundays)
*
* @param startDate The start date. Can take any type that dayjs accepts.
* @param endDate The end date. Can take any type that dayjs accepts.
*/
export function startDaysBetween(startDate: ConfigType, endDate: ConfigType): number[] {
const start = dayjs.utc(startDate);
const end = dayjs.utc(endDate);
let current = start;
// Ensure the start date is a Sunday
while (current.day() !== 0) {
current = current.add(1, 'day');
}
const startDays: number[] = [];
while (current.isBefore(end)) {
startDays.push(current.valueOf());
current = current.add(1, 'week');
}
return startDays;
}
export function firstStartDateAfterDate(inputDate: Date): number {
if (!(inputDate instanceof Date)) {
throw new Error('Invalid date');
}
const dayOfWeek = inputDate.getUTCDay();
const daysUntilSunday = 7 - dayOfWeek;
const resultDate = new Date(inputDate.getTime());
resultDate.setUTCDate(resultDate.getUTCDate() + daysUntilSunday);
return resultDate.valueOf();
}
export type DayData = {
week: number,
additions: number,
deletions: number,
commits: number,
}
export type DayDataObject = {
[timestamp: string]: DayData,
}
export function fillEmptyStartDaysWithZeroes(startDays: number[], data: DayDataObject): DayData[] {
const result = {};
for (const startDay of startDays) {
result[startDay] = data[startDay] || {'week': startDay, 'additions': 0, 'deletions': 0, 'commits': 0};
}
return Object.values(result);
}
let dateFormat: Intl.DateTimeFormat;
// format a Date object to document's locale, but with 24h format from user's current locale because this
// option is a personal preference of the user, not something that the document's locale should dictate.
export function formatDatetime(date: Date | number): string {
if (!dateFormat) {
// TODO: replace `hour12` with `Intl.Locale.prototype.getHourCycles` once there is broad browser support
dateFormat = new Intl.DateTimeFormat(getCurrentLocale(), {
day: 'numeric',
month: 'short',
year: 'numeric',
hour: 'numeric',
hour12: !Number.isInteger(Number(new Intl.DateTimeFormat([], {hour: 'numeric'}).format())),
minute: '2-digit',
timeZoneName: 'short',
});
}
return dateFormat.format(date);
}
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